Phrases Previous Year Questions (PYQs) – Inverse Trigonometrical Function – Page 1 of 2

Phrases Previous Year Questions (PYQs) – Inverse Trigonometrical Function – Page 1 of 2

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The value of 
2tan-1[cosec(tan-1x) - tan(cot-1x)]

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If n1 and n2 are the number of real valued solutions x = | sin–1 x | & x = sin (x) respectively, then the value of n2– n1 is

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If f(x)=tan−1[sinx1+cosx] , then what is the first derivative of f(x)?

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The correct expression for cos−1(−x) is

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The value of cot⁡(cosec−153+tan−123) is

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Solutions of the equation tan−1x2+x+sin−1x2+x+1=π2 are

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If cos−1x2+cos−1y3=ϕ, then 9x2−12xycosϕ+4y2 is

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If  +  =  , then 


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The value of A that satisfies the equation asinA + bcosA = c is equal to


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Find the principal value of  is


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